Got this via comment to webpage:
LibreOffice Vanilla on OS X available through the OS X App Store (version 184.108.40.206) has problems printing: the page orientation is always 90 degrees off. If you export to PDF and then print, there is no problem. But doing a cmd-p / File -> Print, you will observe both the preview and the resulting hardcopy are printed as though the paper / media is rotated, but the content being printed is not rotated. And there appears to be no way to "fix" this by electing alternate print dialog choices or fixing the page setup.
I just installed the normal LibreOffice 220.127.116.11 from libreoffice.org, and it doesn't have these problems.
*** This bug has been marked as a duplicate of bug 92190 ***